42212810 has 8 divisors (see below), whose sum is σ = 75983076. Its totient is φ = 16885120.

The previous prime is 42212801. The next prime is 42212827. The reversal of 42212810 is 1821224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36881329 + 5331481 = 6073^2 + 2309^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42212810² = 3563842656192200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2110631 + ... + 2110650.

Almost surely, 2^42212810 is an apocalyptic number.

42212810 is a deficient number, since it is larger than the sum of its proper divisors (33770266).

42212810 is a wasteful number, since it uses less digits than its factorization.

42212810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221288.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 42212810 is about 6497.1386009535. The cubic root of 42212810 is about 348.1887655597.

The spelling of 42212810 in words is "forty-two million, two hundred twelve thousand, eight hundred ten".